Layout a grid of figures in an RMarkdown file

side-by-side.Rmd

---
title: "Side-by-side images"
author: "Jacqueline Nolis"
date: "4/21/2020"
output: html_document
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```

```{r}
library(ggplot2)

```

```{r example, results="asis"}
cat("<div class=\"row\">")
for(i in 1:12){
  cat("<div class=\"col-xs-4\">")
  plot <- ggplot(cars,aes(x=speed,y=dist))+geom_point(position=position_jitter())
  print(plot)
  cat("</div>")
}
cat("</div>")
```